Jagustin families are Croats and they are mostly from Bosnian Posavina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Modrica area) and in Osijek.
Prevalence
About 90 people with faimily name Jagustin live in Croatia today, in 40 households. They are located in the most of Croatian counties, in 9 cities and 15 other places, mostly in Zagreb (20), Velika Gorica (15), Osijek (15), Rakitovec (<10), and in Koprivnica (<10).